Gael friedrich wurmbach



No. 609,489. Patented Aug. 23, |898. C. F. WUBMBACH. DISINTEGRATINGMACHINE FOR GLUE PIECES.

(Application led Apr. 19, 1895. Renewed Mar. 14, 1898.) ,(No Model.)v

UNITED STATES PATENT OFFICE..

cARL FRIEDRICH wURuRAcI-I, or MsEN, GERMANY.

DlslNTi-:GRATINe-MACHINE Foa GLUE PlEoEs.

'SPECIFICATION formingpart of Letters atent No. 609,489, dated August23, 1898. Application filed April 19, 1895. Renewed March 14, 1898.Serial No. 673,865. (No model.)

To all whom,` t may concern:

Be it known that I, CARL FRIEDRICH WURMBAOH, manufacturer, of Miisen,near Dahlbruch, in the Kingdom ofPrussia, German Empire, have inventednew and useful Improvements in Disintegrating-llrlachines 1 for GluePieces and the Like, (for which I have obtained patents in Germany, No.81,690, dated June l5, 189,5; in Austria, No. /212, dated January 17,1895; in France, No. 242,894, dated March 5, 1895, and in Great Britain,No. 22,684, dated November 22, 1894,)

of which the following is a specification.

My invention relates to improvementsin disintegrating-machines for gluepieces andl the like, and has for its object a disintegrating machine ordevil for the glue pieces which constitute the raw materialfor themanufacture of size. This raw material consists of skin-parings, refuse,or waste, but not that proceeding from the tanned parts of the saidskin, which parings, ne., when wet are very tender and elastic andofvarying thicknesses.

In order to obtain as good and as uniform and more valuable size.

According to the processes hitherto used, whereby uneven and dissimilarglue pieces and the like constituted the raw material treated, it wasnot possible to obtain a regu- -lar and uniform treatment, and theresulting edy all these defects and to obtain the tech- ,upon an axis band fixed thereon by means of va boss c and screw and nut c. Theformation of the teeth is the characteristic feature of this drum a.These teeth are all obliquely sharpened and are made alter- 'natelystraight and crossed toward the right,

then `crossed to the left in order to become straight again, and so on.slantly sharpened from points and cutting edges, the latter followingalternately two on the same side. Two right-slant edges alterso on. Thedrum a is set in rotation by a pulley q and is driven at a comparativelyhigh speed.` This disintegrating-drum d is surrounded over a quarter ofits periphery or thereabout with a casing d'. The material supplied bythe feeding-hopper m passes between the drum d and its casing d and istherein disintegrated or torn into fibers. For this purpose the casingis provided with teeth on its inner periphery, Fig. 3, in which threerecesses e e e alternate with four toothed surfaces. Two centralsurfaces f f are provided with angular teeth, while the two remainingtoothed surfaces y have parallel teeth, and this arrangement ofalternate recesses and parallel and angular teeth has a very greatimportance on the technical effect to he obtained therefrom, the angularteeth ff serving to push the glue pieces toward the center. This Theteeth are- -nate likewise with two left-slant edges, and

drum ct may be brought more or less into close proximity to the casing dbymeans ofscrews g and hand-wheels 77 and when the diameter of thesaw-bands becomes smaller by wear the casingV d can be moved forward bya pressure-screw fi, this casing being movable upon the axis k.

gratin g-drum a.

The upper part of the casing has the form of a pocket Z, the peculiarform of which is of importance on the result sought for. In this pocketturns a fluted roller m, which is arranged in such a manner that betweenthe same and the pocket is formed a gap or cleft, becoming narrowertoward the drum a. This iiuted roller m has for its object to conveyaxis n of the fluted rollers m is movable and y is pressed by weightsplaced on levers r against the pocket Z. This pressure can be releasedby a hand-wheel s and can be regulated by a ratchet-wheel Z so as to beapplied wherever required. Material of different size can pass betweenthe fluted roller m and the pocket Z. Motion is imparted by means of twopairs of bevel-wheels and by shafts o and u, driven by pulleys i: o. Thepocket receives the material from a grinding-roller p with a roughsurface. This roller is adjustable vertically, is rotated by the ilutedroller m, and has for its object to seize the glue pieces dropping fromthe feeding-hopper to vdistribute the same, and to convey them to theentrance to the said pocket Z. At the same time this roller p pressesthe raw material against the fluted roller m and acts thussimultaneously as conveyer and distributer, while preventing stoppagesat the entrance to the pocket resulting from an undue pressure of theraw material against the iluted roller.

This machine operates as follows: The glue pieces are thrown asregularly as possible into the feeding-hopper whence they reach thegrinding-roller p, which distributes them uniformly and conveys them tothe entrance of the pocket Z, where they are seized by the iluted rollerm and passed on to the disinte- The teeth from the latter tear off'fibers from the glue pieces while the same are firmly held by the utedroller m. The shape of the teeth causes the pointed parts athereof toenter first the pieces of the skin,

while the lateral edges cut oif the fibers. The y pieces remaining afterthis treatment are further operated upon in the space between the druma, and its kcasing CZ, the teeth of the casing holding thepieces' whilethe saw-teeth carry on their tearing action; but if the teeth wereuniform over the whole of the inner periphery of the casing the gluepieces would be forced through the saw-teeth and pass untouched throughthe drum. It is for this reason that the recesses have been designed, inwhich recesses the pieces are thrown or slung through by reason of thegreat power developed by the centrifugal force. The angular-formed teeth`of the central part of the casing guide and collect the glue piecestoward the axis of the 1 machine. i

As my improvements are capable of some modification withoutdeparting-from the prineiple thereof, I do not restrict myself to theprecise form and place-ment of the several parts thereof.

Having now 'described my invention, what I claim, and desire to secureby Letters Patent, is

l. In a machine for disintegrating glue pieces for themanufacture ofsize, the combination of an adjustable curved ca sing, with ayieldingly-supported iiuted roller, and a conveying and distributingroller, substantially asdescribed.

2. In a machine for disintegrating glue pieces for the manufacture ofsize, the combination of an adjustable curved casing the upper part ofwhich has the form of a pocket, with a yieldingly-supported flutedroller turning in said pocket, and a conveying and distributing rollerwith a rough surface, substantially as specified.

3. In a machine for disintegrating glue ,pieces for the manufacture ofsize, the combination of an adjustable drum formed of crossed saw-bands,with an adjustable curved casing provided with alternated recesses andparallel and angular teeth, and a fluted roller connected with anadjustable Weight-lever, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

CARL FRIEDRICH WURMBACH.

Witnesses:

ANTON MULLER, CLEMENs WURMBACH.

IOO

